I don't have a specific question in this post but just a suggestion that might look interesting. Its not even a request for new feature of plugin otherwise I would make this post as reply in the foo_discogs plugin topic. Anyone who likes (as I do) it, take a look here:

What is your opinion about that? I think with using something like that the time spent on plugin, as using it, could be even reduced. In shorter time would be done more. And the quality of the plugin (it is already perfect) could be even increased.